把下列各式分解因式: (1)a2(x-y)2+2a(x-y)3+(x-y)4 (2)(x2+y2)2-4x2y2.
题目
把下列各式分解因式:
(1)a2(x-y)2+2a(x-y)3+(x-y)4
(2)(x2+y2)2-4x2y2.
答案
(1)a2(x-y)2+2a(x-y)3+(x-y)4,
=(x-y)2[a2+2a(x-y)+(x-y)2,
=(x-y)2(a+x-y)2;
(2)(x2+y2)2-4x2y2,
=(x2+2xy+y2)(x2-2xy+y2),
=(x+y)2(x-y)2.
举一反三
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
最新试题
热门考点